Structural Formula Vector Image
Title: Tetrabarbital
CAS Registry Number: 76-23-3
CAS Name: 5-Ethyl-5-(1-ethylbutyl)-2,4,6(1H,3H,5H)-pyrimidinetrione
Additional Names: 5-ethyl-5-(1-ethylbutyl)barbituric acid; 5-ethyl-5-(1-ethylbutyl)malonylurea
Manufacturers' Codes: JL-991
Trademarks: Butysal; Butysedal
Molecular Formula: C12H20N2O3
Molecular Weight: 240.30
Percent Composition: C 59.98%, H 8.39%, N 11.66%, O 19.97%
Literature References: Prepd from ethyl 2-ethyl-2-(1-ethylbutyl)malonate + urea: Kopp, Tchoubar, Bull. Soc. Chim. Fr. 1951, 30; Tchoubar, FR 1020357 (1953), C.A. 53, 1389a.
Properties: Crystals, mp 122°.
Melting point: mp 122°
NOTE: This is a controlled substance (depressant): 21 CFR, 1308.13.
Therap-Cat: Sedative, hypnotic.
Keywords: Sedative/Hypnotic; Barbituric Acid Derivatives.
Status: This monograph has been retired and is no longer subject to revision or update.

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